Current charges as on date, with 18% GST
Federal Bank
0.85% + GST = 1.003%
Kotak Mahindra Bank
0.80% + GST = 0.944%
2.75% + GST = 3.245% (International cards)
Canara Bank (LOWEST)
0.47% + GST = 0.5546%
amex card won't work. Not sure about diners. RuPay, Master Cards, Visa are working.